Iva Toteva

It's good to hear that you have find a solution to the problem you are observing.
Judging from the behavior and the fix, the issue is probably due to a style in your application that gets applied to some of the controls in RadRichTextBoxRibbonUI. We would highly recommend not using explicit styles, as other similar issues may occur.

Kind regards,
Iva Toteva
the Telerik team

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